Pipe-wrench.



W. J. BRIGHTWELL.

PIPE WRENCH.

APPLICATION FILED JUNE 29, 1912.

1,045,937. I Pa tented Dec.31,1912.

I anon/Hi0;

Iri'well,

PH CO.,WASHINOTON n c WALTER J. BRIGI-ITWELL, 0F KILGORE, TEXAS.

PIPE-WRENCH.

Specification of Letters Patent.

Patented Dec. 31, 1912.

Application filed June 29, 1912. Serial No. 706,755.

T 0 all whom it may concern:

Be it known that I, VVALrna J. BRIGHT- wnLL, a citizen of the UnitedStates, residing at Kilgore, in the county of Gregg and State of Texas,have invented certain new and useful Improvementsin Piperenches, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention relates to improvements in wrenches and more particularlyto that class of wrenches comprising a pair of crossed pivotallyconnected levers.

The primary object of this invention is the provision of a wrenchcomprising a pair of levers having jaws detachably connected thereto.

A further object of the invention is the provision of a wrench which maybe provided with a plurality of interchangeable jaws.

With these and other objects in view my invention consists in certainconstructions and arrangements of parts to be hereinafter more fullydescribed, claimed and illustrated in the accompanying drawing, in whichFigure 1 is a front view of my pipe wrench; Fig. 2 is a side viewthereof; Fig. 3 is a section taken on the line 33 of Fig. 1; Fig. 4 is asection of one of the jaw holders; and Fig. 5 is a perspective view ofone of the jaws.

Referring in detail to the drawing the numeral 1 designates generally myimproved invention, comprising a pair of crossed pivotally connectedlevers 2. The levers are formed at one end with handle members 3 andhave their opposite ends enlarged as at 4 to form jaw holders. Each ofthe jaw holders is formed with a longitudinal slot 5 and the oppositewalls 6 of each holder are connected by a cross bar 7 intermediate ofits ends. A similar cross bar 8 connects the walls of the holders attheir extremity and on the opposite faces thereof. Jaws 9 are supportedin the slots 5 in the holders and each of the jaws is provided with alug 10 on one end which is adapted to engage the cross bar 7 of theholders and prevent longitudinal movement of the jaws. The intermediateportions of the jaws are arranged between the walls of the holders andengage the cross bars 8 thereby preventing outward movement of the jaws.The ends of the jaws opposite the lugs 10 are curved arcuately as at 11and provided with teeth 12 to prevent the Wrench from slipping on a pipeor other smooth object, to which it is applied.

Mounted on the outer .sides of the holders are spring members 13 formedat one end with square openings 14 which are adapted to engage the lugs10 of the jaws. The eX- tremity of the spring members adjacent theopenings therein are curved upwardly to provide finger pieces forraising the spring out of engagement with the lugs 10 of the jaws. It isapparent from the drawing that should the outer face of the jaws bestruck against an object, the lugs 10 thereof may be disengaged from thecross bars 7 whereupon the lugs will engage the square open ings in thesprings, and thereby be prevented from longitudinal movement ordisplacement from the holders. Should one of the jaws of the wrenchbecome broken it may be easily removed from the holder by raising thespring 13 and disengaging the lug from the cross bar 7 whereupon a newjaw may be placed in the holder.

Any desired number of jaws of different sizes may be used with thiswrench and it is apparent that expense to the user will be minimized asonly one pair of levers is necessary with any number of jaws.

Having thus described the invention, what is claimed is:

1. A device of the character described, comprising a pair of crossedpivotally connected levers, jaws removably secured in longitudinal slotsformed in one end of said levers, lugs formed on one end of said jaws,and spring members provided with openings to receive said lugs mountedon the levers, said spring members adapted to hold the jaws in position.

2. A device of the character described, comprising a pair of levershaving longitudinal slots in one end thereof, cross bars connecting saidslots, jawshaving lugs on one end arranged in said slots, and springmembers provided with openings to receive said lugs, said spring membersadapted to hold said jaws in position.

3. A device of the character described, comprising a pair of crossedpivotally connected levers, one end of each of said levers beingenlarged to form jaw holders, said jaw holders being formed withlongitudinal slots and cross bars adapted to connect the opposite wallsof said holders, jaws ar ranged in said slots and bearing against saidcross bars, and spring members adapted to hold said jaws in position.

4. A device of the character described, comprising a pair of crossedpivotally connected levers, one end of each of said levers beingenlarged to form jaw holders, said jaw holders being formed withlongitudinal slots and cross bars to connect the opposite walls of saidholders, jaws having lugs on one end arranged in said slots, the saidlugs bearing against the cross bars of the holders, and spring membersprovided with openings to receive the said lugs mounted on said levers,said spring members adapted to hold the jaws in position.

111 testimony whereof I hereunto affix my signature in the presence oftwo Witnesses.

WALTER J. BRIGHTWELL. Witnesses:

O. G. CHANDLER, L. P. GRIFFIN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

